24 THE VOYAGE OF H.M.S. CHALLENGER. 
feet at low water, and with it an allied larger similarly free growing Coral, Herpetolitha. 
The Mushroom Corals cover the bottom in places in such large quantities, that a cart load 
of them might be picked up in a very short time ; I have nowhere seen them so common.”? 
The species collected include the following :— 
Acrohelia horrescens, Dana. 
Pocillopora acuta, Lamk. 
Seriatopora cervina, Lamk. 
Euphyllia glabrescens, Chamisso. 
Mussa multilobata, Dana. 
Symphyllia acuta, n. sp. 
Physogyra aperta, 1. sp. 
Ulophyllia aspera, n. sp. 
is cellulosa, 1. sp. 
Tridacophylliia manicina, Dana. 
Goniastrea quoyi, Edw. and H. 
= eximia, Dana. 
i favistella, Dana. 
_ coronalis, n. sp. 
Astrea doreyensis, Edw. and H. 
=f speciosa, Dana. 
»  pandanus, Dana. 
Hydnophora demidoffi, Fischer. 
Phymastrea aspera, n. sp. 
Merulina crispa, Dana. 
Fungia repanda, Dana. 
» plana, Studer. 
»  confertifolia, Dana. 
», patella, Ell. and Sol. 
Herpetolitha crassa, Dana. 
Madrepora securis, Dana. 
a diffusa, Verrill. 
, capillaris, Klz. 
ee tubigera, Horn. 
, mirabilis, . sp. 
Montipora fragilis, n. sp. 
= levis, n. sp. 
Anacropora gracilis, n. sp. 
Porites gaimardi, Edw. and H. 
arenosa, Esper. 
99 
Astreopora profunda, Verrill. 
This collection of Reef Corals is the first which has been made in this locality of which 
there is any published description, and it is perhaps due to this fact that so many of 
the species are new. 
The following ten species are new :— 
Synphyllia acuta. 
Physogyra aperta. 
Ulophyllia aspera. 
a3 cellulosa. 
Goniastrea coronalis. 
Phymastrea aspera. 
Madrepora mirabilis. 
Montipora fragilis. 
k levis. 
Anacropora gracilis 
Of these, one, Physogyra aperta, is the type of a new genus. 
1 Moseley, Notes by a Naturalist on the Challenger, p. 385. 
